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Invoice Ninja vs Ulmo

Professional comparison and analysis to help you choose the right software solution for your needs.

Invoice Ninja icon
Invoice Ninja
Ulmo icon
Ulmo

Invoice Ninja vs Ulmo: The Verdict

⚡ Summary:

Invoice Ninja: Invoice Ninja is an open-source invoicing, expenses, and time-tracking app designed for freelancers and small businesses. It allows you to create professional invoices, track payments and expenses, manage projects, and accept online payments.

Ulmo: Ulmo is an open-source alternative to Trello for kanban project management. It allows users to create boards, lists, and cards to organize tasks and projects in a flexible way.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Invoice Ninja Ulmo
Sugggest Score — —
Category Business & Commerce Business & Commerce
Pricing Open Source Open Source

Product Overview

Invoice Ninja
Invoice Ninja

Description: Invoice Ninja is an open-source invoicing, expenses, and time-tracking app designed for freelancers and small businesses. It allows you to create professional invoices, track payments and expenses, manage projects, and accept online payments.

Type: software

Pricing: Open Source

Ulmo
Ulmo

Description: Ulmo is an open-source alternative to Trello for kanban project management. It allows users to create boards, lists, and cards to organize tasks and projects in a flexible way.

Type: software

Pricing: Open Source

Key Features Comparison

Invoice Ninja
Invoice Ninja Features
  • Create professional invoices
  • Accept online payments
  • Track expenses
  • Manage projects
  • Recurring invoices
  • Multi-currency support
  • Time tracking
  • Tax rates
  • Customer portal
Ulmo
Ulmo Features
  • Create kanban boards to visualize workflows
  • Add lists and cards to boards to represent tasks/projects
  • Drag-and-drop cards between lists to update status
  • Assign cards to team members
  • Add descriptions, checklists, labels, and due dates to cards
  • Comment on cards for discussion
  • Attach files to cards
  • Filter cards by assignee, label, etc
  • Keyboard shortcuts for quick actions
  • Third-party integrations via API

Pros & Cons Analysis

Invoice Ninja
Invoice Ninja

Pros

  • Free and open source
  • Easy to use interface
  • Mobile app available
  • Integrates with many payment gateways
  • Customizable invoices
  • Scales with business growth

Cons

  • Limited reporting
  • Can be slow with large datasets
  • Limited customization options
  • No native accounting integration
Ulmo
Ulmo

Pros

  • Free and open source
  • Flexible kanban workflow
  • Real-time collaboration
  • Customizable boards/lists/cards
  • Third-party integrations
  • Keyboard shortcuts for productivity

Cons

  • Less features than paid tools like Trello
  • Steeper learning curve than simple kanban tools
  • Hosted version lacks some features of self-hosted
  • Mobile app lacks some functionality
  • No time tracking or analytics

Pricing Comparison

Invoice Ninja
Invoice Ninja
  • Open Source
Ulmo
Ulmo
  • Open Source

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Learn More About Each Product

Invoice Ninja
Invoice Ninja
Reviews, pricing & alternatives →
Ulmo
Ulmo
Reviews, pricing & alternatives →

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